Reciprocating motor.



PATENTED AUG. 4, 1908.

I. YASSENOFP. REGIPROGATING MOTOR.

APPLICATION FILED DOT. 7, 1907.

481 I 0 I I I 4 v I W, ll. .9

' 47 H 11.. I. I

UN ED STATES PATENT OFFICE.

, V ISIDOR YASSENOFF, OF COLUMBUS, OHIO. I

Patented Aug. 4, 1908.

I RECIPBOCATING MOTOR.

Specification of Letters Patent.

To all whom it may concern: 4 L

Be it known that I, ISIDOR YASSENOFF, a cltlzen of the United States, residing atColumbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Reciprocating-Motors of which the following is a specification.

My inventionrelates to'improvements in reciprocating motors and consists in the pro? vision of a hydraulic motor having a valve chamber outside of the cylinder, which is adapted to travel with the piston 'rod, the latter being made tubular and divided longitudinally into two passages, one of said passages having communication with the cylinder on one side of the piston, the other passage communicating with the cylinder on the opposite side of the piston; with this construction the valve chamber is always accessible for reconstruction and repair, without entering the cylinder. Provision is made for readily removing the piston from the cylinder when it is desired.

My invention further consists in the mounting of the parts of the motor upon a base so constructed that the alining of the cylinder and the actuating rack and valve chamber is accomplished with ease and certainty; further,-the parts may readily be lifted from the base and may also readily be separated from each other, so that the operating rack, the piston rod, and the valve chamber interposed between the two to travel therewith, may be detached from each other, the cylinder may be taken from the base, and an end thereof readily detached, whereupon the piston maybe quickly removed from the cylinder.

It further consists in providing slide valves controlled by a plate at each end thereof, said plate being provided with a pin projecting through and beyond the valve chamber, whereby at the end of a stroke of the piston in either direction, one of said pins is brought into contact with a spring mounted dog which drives the plate on that side of the valves into contact therewith and thereby opens the valves from the opposite sides, for a purpose which will clearly appear hereinafter in the description. The pin mentioned is preferably provided with a packing intermediate its ends to prevent the water which passes through the valves from issuing through the bearings of the in.

My invention comprises t e foregoing improvements and others which will be more specifically hereinafter set forth.

tor; Fig. 2 is a plan view with the valve chamber in section Fig. 3 is an end elevation of the valve chamber; Fig. 4 is a perspective of a Washing machine having my improved motor thereon in place.

. In the accompanying drawings, in which the same numerals indicate the same parts throughout, 1 is the base upon which are provided the upright frame members 2, 3, 4, and 5, supporting the cylinder and operating parts; the cylinder at'oneend 6 is positioned between the frame members 3 and 4, and at its other end is provided with the enlargement 7 having therein a shallow depression 8 withwhich engages the set screw 9, the latter being inserted through the threaded opening 10 at the upper end of the frame member 2. The position of the set screw being fixed by the construction of the parts, and the positioning of the enlargement 6 at one end of the cylinder being also determined by the upright frame members 3 and 4, three bearing points for the cylinder are thus provided which renders its alinement certain. The valve chamber is shown at 11, having the dividing wall 12, whereby the valve chamber is divided into the two compartments 13 and 14; the dividing wall 12 is chambered at each end as shown at 15 and 16, the outlet for the water being shown at 17 from chamber 15, the inlet through chamber 16 being shown at the pipe or tube 18.

An 0 ening is provided through the dividing wall 12 of the valve chamber 11 into the chamber 15,, said opening communicating with the compartments 13 and 14, and a slidin valve 19 is mounted in said 0 ening, said valve being flanged at each en thereof as shown at 20, and21. When the valve 19, as

shown in Fig. 2,'is moved to the right until the flange 21 engages against the o ening in the dividing wall, said opening is closed thereby at that end, but is opened at the opposite end, so that there is communication established between compartment 14 and the internal chamber 15, the latter communicating with the tube 17. Inasmuch as all the water admitted into the valve chamber 11 must be conducted to the piston and through the cylinder, means will hereinafter be described for accomplishing this purpose.

Valve 22 is located in a similar opening through the dividing wall at the opposite side of the valve chamber 11, and is constructeg'l iwith a circumferential flange 23 forwardly or rearwardly to bring its flange 23 into contact with either of the walls inclosing said chamber 16, as desired. In the position of the parts shown in Fig. 2, it is seen that valve 22 is closed to fluid found in the compartment 14, whereas it is open to fluid found in the compartment 13 therefore, as shown, valve 19 is in communication with compartment 14 when valve 22 is in communication with compartment 13, and vice versa. Therefore, it is clear, that in the position of the parts shown in Fig. 2, compartment 14 is in communication with internal chamber 15 and pipe 17, while compartment 13 is in communication with internal chamber 16 and pipe 18.

The valves 19 and 22 are under the control of the plates 24 and 25, each of said plates having projecting therefrom a pin 26, the latter having a sliding bearing in the enlargement 27 on the valve chamber 11. A similar pin 28 is provided on the opposite side, having a sliding bearing in the enlargement 29 of the valve chamber 11. The valves are 0011- trolled by contact with the plate members 24 and 25 described, the latter being actuated by the pin thereon when said valve chamber is at the end of its travel in either direction, by the engagement of the pin against a spring dog 30 at one end of the travel and 31 at the opposite end. In the position of the parts shown in Fi 2, the piston has reached its limit of travel towards the left, thereby bringing the valve chamber towards the left end of the base 1, so that the pin 26 has engaged against the spring dog 30, thereby driving the pin inwardly and engaging the plate against the ends of the valves 19 and 22; so that in this position of the parts, the valves are thrown open to the compartments described above, and as the piston travels towards the right the direction of the flow of the water, which may be into or out of the compartments, will be determined by the po sition which the valves have been made to assume. When the piston reaches the end of the travel in this direction, pin 28 will engage against the spring mounted dog 31,

which will drive the valves in the opposite direction into a position for the valves not illustrated, but which it is readily seen will be such that communication between compartment 13 and internal chamber 15 will be established, and communication between compartment 14 and internal chamber 16 will also be established.

The flow of water into and out of the cylinder for actuating the piston takes place through the tubular stem 32, which is preferably secured in the dividing wall 12 of the valve chamber 11, as shown in Fig. 1 at 33; preferably the end of the stem 32 is threaded so that it may be easily positioned and detached. The stem 32 is divided longitudinally by the wall 34 into the two longitudinal passageways 35 and 36; passageway 35 communicates through the opening 37 adj acent its inner end with the cylinder 38, and at its outer end con'nnunicates through the opening 39 with the compartment 13 of the valve chamber 1] whereas passageway 36 communicates at its inner end with the cylinder on the opposite side of the piston 40 from that with which passageway 35 communicates, and at its outer end said passageway 36 communicates through opening 41 with compartment 14 of valve chamber 11.

In the position of the part shown in Fig, 1, the portion of the cylinder communicating with passageway 35 will be tilled with the water which has just been utilized in driving the piston towards the position there shown, and to drive the piston in the opposite direction to cause the parts to assume the position indicated in Fig. 2, it is clear that the fluid entering the cylinder must do so through passageway 36, thereby driving the piston outwardly, or towards the left as shown. Viewing the parts as positioned in Fig. 2, the piston is now ready for its travel towards the right, and this travel will be produced as follows: water enters through pipe 18 into internal chamber 16 and passes outwardly therefrom into compartment 13, which communicates with passageway 35 through the opening 39; the water travels along its passageway to the opening 37 into the cylinder, and filling the cylinder between the end Wall 42 and the piston. 40, it will exert pressure upon the face of the piston 40 adjacent I the end wall 42, whereby the piston will be driven through the cylinder towards the end wall 43, to a position shown in Fig. .1 meanwhile the water filling the cylinder in the po sition of the parts shown in Fig. 2 will escape therefrom, as the piston travels inwardly, through the passageway 36, out through the opening 41, into the compartment 14, whence, the valve 19 being open on. that side, the water escapes into internal chan'iber 15 and into pipe 17. Whenthe parts reach the position indicated in Fig. 1, the pin 28 engages the spring dog 31, thereby driving the plate 25 inwardly against the ends of the valves, so that valve 19 is made to communieate with compartment 13 and valve 22 is thrown into communication with compartment 1.4; consequently, water will. now enter through pipe 18 and internal chamber 16 into compartment 14 and thenee will be conducted through the opening 41 through the passageway 36 into the cylinder adjacent the wall 43, whereby pressure is exerted against the face of the piston adjacentsaid end 43, tending to drive the piston towards the left, and the water in the cylinder will escape therefrom through opening 37 into passageway 35 and outwarditherefrom into comartment 13, and thence into internal chamer 15 and out through the pipe 1.7. The operation. hereinbefore described will be repeated as the piston travels from one end to the other of its course. The piston being thus actuated, will carry along with it in its. movement the rack bar 44, which, as shown in Fig. 1, is threaded at one end and secured at 45 in the dividing wall'12 of the valve chamber 11; the pinion 46 is mounted on the vertical shaft 47 which passes through the base 1 into the washing machine 5O shown in Fig. 4, and has attached at its lower end a stirrer. Through the actuation of the rack bar 44, the clothes in the washing machine are therefore agitated. Rack bar 44 preferably rests upon a post 5 and slides thereon in its inward and outward movement, while on its smooth side it engages against post 48 and is thereby held in proper position laterally. Each of the pins 26 car ries thereon a packing ring 49, which prevents the escape of the water along the pin from either of the compartments in any position of the plates 24. i

As shown, and as preferably constructed, the rack bar is detachable from the valve chamber, the piston is also detachable therefrom, the end wall 42 of the cylinder is readily removable therefrom, and the side walls of the valve chamber may also readily be taken therefrom, whereby access to the valves is afforded; therefore, if repair of any of the parts is needed, it may be quickly accomplished by detaching and separating thei parts as mentioned. Itwill be noted also that the base portion with. its frame members and posts thereon is constructed so as to render the positioning and removal of all parts quick and easy. .-In this class of machine, it is necessary to produce an article which may be sold cheaply and which may be, repaired with only slight expense, and I have provided a hydraulic motor which has all of the advantages desired and which therefore has gone into very extensive use.

What I claim is 1. A hydraulic motor construction comprising a cylinder, a piston adapted to reciprocate therein, a rack bar, a valvechamber secured to said rack bar andpiston stem to travel therewith and having valves therein, and a base upon which said parts are removably located, comprising standards for supporting said cylinder and alining the same,

a 0st upon the top of which said rack bar is a a ted to be moved, and means mounted on sai base for tripping the valves in said valve chamber.

2. A hydraulic motor construction comprising a base, standards supported on said base, acylinder supported in said standards and alined-thereby and having one end readily detachable, a piston stem projecting from said cylinder and adapted to reciprocate therein, a valve chamber mounted on said piston stem externally of said cylinder, and adapted to move therewith, and a rack bar secured in said valve chamber and adapted to move therewith, a post mounted on said base, said rack bar being movable upon the upper face of said post, valves in said valve chamber, and o crating means therefor.

3. A hydraulic motor construction comprising-a base, standards arising therefrom, a cylinder mounted in said standards and alined thereby, a tubular piston stem adapted 'for reciprocation in said cylinder, a valve chamber removably mounted upon said piston stem adjacent the outer end thereof externally-of said cylinder and having valves therein, a rack bar removably secured to said valve chamber, a su port on said base upon which said rack bar is adapted to travel and means mounted upon said base for tripping the valves.

4. A hydraulic motor construction comprising a cylinder, a piston therein, atubular stem for said piston projecting from said cylinder and adapted to reciprocate therein, a valve chamber mounted on said piston stem externally of said cylinder and having compartments therein adapted tocommunicate through said tubular piston stem with said cylinder on opposite sides of said piston, valves in said valve chamber, and operating means therefor.

5. A hydraulic motor construction comprising a cylinder, 'a piston therein, a tubular piston stem projecting from said cylinder and adapted to reciprocate therein, a longitudinal wall through said tubular stem forming passageways therethrough, a valve chamber borne by said piston stem upon its outer end externally of said cylinder, a dividing wall in said valve chamber forming compartments therein, said compartments being in communication through said tubular piston stem with said cylinder on o posite sides of said piston, valves in said va ve chamber, and operating means therefor.

6. A hydraulic motor construction comprising a cylinder, a iston therein, a tubular piston stem mounted in said cylinder for reciprocation, a longitudinal dividin wall in said stem, a valve chamber carrie by said piston stem externally of said cylinder, a dividing wall in said'valve chamber forming compartments therein, one of said compartments being in communication through one &

being in communication through the other passageway of said tubular valve stem With said cylinder on the other side of said piston, valves in said valve chamber, and operating means therefor.

7. A hydraulic motor construction comprising a cylinder, a piston having a tubular stem projecting from said cylinder mounted for reciprocation therein, a valve chamber construction borne by said piston stem externally of said cylinder, a dividing Wall in said valve chamber forming compartments therein, said compartments being in communication through said tubular piston stem With said cylinder each with one side of the l in piston therein, valves mounted in said dividing Wall in said valve chambenand means for tripping said valves at the ends of the stroke of the piston.

8.111 a hydraulic motor construction, a cylinder, a )iston therein, a tubular piston stem divide longitudinally mounted in said cylinder for reciprocation, a valve chamber construction borne by said )iston stem ad jacent its end externally of saidcylinder, a d ivid ing Wall in said valve chamber forming compartments therein, valves slidably mounted in said dividing Wall and adapted to control the communication between said compartments and said tubular stem, and means for moving said valves at predetermined intervals.

In testimony whereof I aflix my signature the presence of two witnesses.

ISIDOR YASSENOFF. Witnesses:

GEO. W. RIGHTMIRE, A. RAGER. 

